Morning Cup of Links: Online Dating for Geniuses

Facebook explains why it experimented on us. No harm done, unless you count the trust of users who don’t know if they were among those manipulated.
*Online Dating for Geniuses Only. Match.com and Mensa are collaborating on a way for those with high IQs and high expectations to meet each other.
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Buddy the dog gives a baby lessons in crawling. Just do it like he does, little girl, and soon you’ll be chasing each other around the backyard!
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A Colorado family set up a camera to see what was happening to their barrel of water. The images they got were priceless!
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The Best News Bloopers of June. NSFW language, despite it being live TV. Alcohol may have been involved.
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Why it’s time to stop the anti-spoiler paranoia. Our water-cooler discussions shouldn’t have to tiptoe around people who choose to delay their TV viewing.
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Legendary Disney animator Glen Keane returns with Duet, a beautiful sequence in which two babies grow up and discover each other. The three-minute film contains over ten thousand hand-drawn images.
*Natural childbirth is much, much more than a Brooklyn fad. You don’t have to give birth in the woods or underwater to object to modern medical intervention.

Also on Mental Floss:

DID YOU KNOW? Marlon Brando hated memorizing lines so much that he posted cue cards everywhere to help him get through scenes.
He even asked for lines to be written on an actress's posterior. (That request was denied.)